NMR Studies of Ion Mobility and Association in Polyether-Based Polymer Electrolytes

Abstract

The results of several investigations of polyether-based polymer electrolytes by nuclear magnetic resonance (NMR) spectroscopy conducted in the author's laboratory and by other groups are reviewed. For both 7Li and 23Na NMR, the onset of motional line-narrowing occurs at about the glass transition, illustrating the importance of polymer segmental motion to ion transport. Examples of the ability of NMR to probe cation-anion interactions are discussed. These include chemical shift variations corresponding to different Li(+) environments and nuclear quadrupole coupling and relaxation behavior as a probe of Na(+) environment.

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Document Details

Document Type
Technical Report
Publication Date
Jan 25, 1993
Accession Number
ADA260662

Entities

People

  • Steven G. Greenbaum

Organizations

  • Hunter College

Tags

DTIC Thesaurus Topics

  • Chemical Shifts
  • Diffusion Coefficient
  • Electrolytes
  • Environment
  • Magnetic Resonance
  • Materials
  • Mobility
  • Nuclear Magnetic Resonance
  • Nuclear Properties
  • Polyethers
  • Polymers
  • Precipitation
  • Quantum Properties
  • Relaxation Time
  • Resonance
  • Transitions
  • Transport Ships

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.